Samuel p



(N0 Model.) S. P. GOLD.

STEAM RADIATOR.

No. 288,995. Patented Nov. 27, 1883.

{K gig .ilnrrnn STATES ii-TENT Fries. l

SAMUEL r. GOLD, or nnonnwoon, NEW JERSEY.

.STEAM-RADIATOR.

SPECIFICATION forming part of, Letters Patent No. 288,995, datedNovember 27, 1883.

(No model T0 all whom it may concern:

Be it known that I, SAMUEL F. GoLn, of Englewood, in the county ofBergen and State of New Jersey, have invented a new and usefulImprovement in Steam-Heaters, fully described in the followingspecification and clearly shown in the accompanying drawings.

On the 16th of March, 1880, Letters Patent of the United States No.225,47 2 were granted to me, which patent shows and describes asteam-pipe wound with a compound coil of wire; and it is the design ofmy present invention to enlarge the compass of that invention byapplying certain other forms of extended surfaces to steam or hot-waterpipes for the radiation of heat.

Referring to the drawings, Figure 1 represents a portion of a steam orhot-water pipe, with coils of metallic wire attached thereto, andshields at each end to protect the coils. Fig. 2 is a centrallongitudinal section of the same on the plane 1 y of Fig. 1. Fig. 3 is across-section of the same on the plane as a: of Fig. 1. Fig. at shows amodification of my improvement, and it represents an end View of asteam-pipe surrounded with coils of metallic wire having flattened orconcave sides impinging on the pipe. Fig. 5 is a second modification,and it shows wiresor strips of metal bent to a regular or irregularshape and bound to a steam-pipe.

The coils of wire A are placed in close juX- taposition in contiguousrows, and cover the entire circumference of the steam pipe B. Thiscontiguity of the coils constitutes'a complete series of coils of wiredescribing a circle around the pipe, as seen in Fig. 3. These coils ofwire are secured thereto by a binding-wire, c, which also maintains themin close contact with the pipe; but other means for fastening the coilsof wire in place maybe employed as an equivalent for a binding-wire-as,for example, metallic bands or ribbons applied at suitable distancesaround the outside of the coils; or a number of coils sufficient tocover the pipe may be bound or laced together, and thus made to incloseit; or they may be bound by a net-work of wire tightly drawn around theoutside of the coils; or the coils may be attached temporarily, and thendipped in a bath of molten metal-as zinc, tin, or other suitablesoldering material-thus sufficiently uniting them to the pipe withoutother fasten- If it be desired to have more points of contact with thepipe, the coils may be flattened 0r concaved on the side next the pipe,as seen in Fig. a. This arrangement of coils around a steam-pipe has theadvantage of extending the area of secondary or wire surface to themaximum, while the primary or pipe surface remains at the minimum, andthus the maximum effect is produced with a minimum expenditure of metal.Moreover, the greatest economy of space is utilized, which rendersthissystem well adapted for heating places where space is limited, as inpassenger-cars or drying-rooms, where a single pipe pro vided with thisimprovement can be made to do the work of several pipes not so providedwith extended surface. Furthermore, the independent arrangement of thecoils upon each separate pipe, whereby any one pipe is distinct from theothers, with an equal facility for being employed separably or ingroups,

- renders this system favorable for ayariety of shapes and styles informing heating-stacksas, for instance, in an indirect radiator I amenabled to place one tier of coil-covered pipes near the top of theheating-chamber, another in the middle, and still another at the bottom,with considerable air -space between them, thus forming intermediateair-spaces where the strata of hot and cold air can commingle beforestriking the next tier of pipes above, which is an advantage notafforded within the space usually occupied by ordinary forms of heaters.

I do not limit myself to a round pipe, as the same may be an oval orfluted pipe, or of still other forms in cross-section. Neither do Iconfine myself to round wire, as manifestly other are the coils placedso as to encircle the pipe in a continuous series, with a binding-wireto secure them to the pipe, as herein showni I am also aware thatmetallic spirals and metallic scrap have been used around hot-airfurnaces; but these have no binding to effect their a wire for holdingsuch secondary heating-sur- 10 close contact with the hot surface, asherein face in place substantially as set forth. described, but areplaced loosely within the 2. The combination of the steam-pipe B, theheating-chamber. I am also aware that wirecontinuous series of metalliccoils A, and the clothhas been used around the jackets of stovesbinding-wire c, substantially as set forth.

and furnaces, and all these I disclaim; SAMUEL F. GOLD.

What I claim as new is- Witnesses: 1. In combination, a steam-pipecovered by E. S. GRosVENoR,

an extended or secondary heating-surface, and H. H. GOLD.

